Dowsing to Search Land
While searching for Zelda, Link will explore a vast landscape. He will often have to return to previously visited locales to search for something new. He may find those areas to be greatly changed upon his return, and this is where Dowsing comes into play.
Dowsing uses the power of Link's sword to find hidden people and items. Sound and vibration help to indicate when the target is close, similar to radar. Searching for items, people, and secret areas adds a deep element of puzzle-solving and exploration to the open field, the kind that existed only in dungeons in previous Zelda™ games.